```sql\nSELECT \n    DATE_FORMAT(`reporting_time`, '%Y-%m-%d') AS '日期',\n    COUNT(*) AS '告警数'\nFROM \n    `debot_m_alarm`\nWHERE \n    YEARWEEK(`reporting_time`, 1) = YEARWEEK(CURRENT_DATE, 1) - ${thisWeekNum}\nGROUP BY \n    DATE_FORMAT(`reporting_time`, '%Y-%m-%d')\nORDER BY \n    `reporting_time` ASC\nLIMIT 7\n```